doc: add tip re. ports to open on firewall to README

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Michael Vorburger ⛑️ 2020-03-15 21:36:42 +01:00 committed by GitHub
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@ -67,6 +67,27 @@ The diagram shows a typical deployment in a host running Docker. This project
separates each of the components above into interlinked containers. To this end,
several container images are provided.
### External Ports
The following external ports must be opened on a firweall:
* 80/tcp for Web UI HTTP (really just to redirect, after uncommenting ENABLE_HTTP_REDIRECT=1 in .env)
* 443/tcp for Web UI HTTPS
* 4443/tcp for RTP media over TCP
* 10000/udp for RTP media over UDP
Also 20000-20050/udp for jigasi, in case you choose to deploy that to facilitate SIP acces.
E.g. on a CentOS/Fedora server this would be done like this (without SIP access):
```shell
$ sudo firewall-cmd --permanent --add-port=80/tcp
$ sudo firewall-cmd --permanent --add-port=443/tcp
$ sudo firewall-cmd --permanent --add-port=4443/tcp
$ sudo firewall-cmd --permanent --add-port=10000/udp
$ sudo firewall-cmd --reload
```
### Images
* **base**: Debian stable base image with the [S6 Overlay] for process control and the